Dispenser device for spraying powder

Abstract

The present disclosure relates to a dispenser device for spraying pharmaceutical powder. In the case of using the dispenser device of the present disclosure, a catheter can be prevented from bending, and pharmaceutical powder can be used through a spraying method without fine spray of the powder.

What is claimed is: 
     
         1 . A dispenser device for spraying pharmaceutical powder, comprising:
 (a) a drug container adapter enabling a pharmaceutical powder container to be mounted thereto;   (b) a housing comprising a first transfer tube communicating with the drug container adapter to allow pharmaceutical powder delivered from a pharmaceutical powder container to pass therethrough, and a second transfer tube communicating with the first transfer tube so as to discharge the pharmaceutical powder together with air, the second transfer tube having both ends communicating with a conduit mounting part and an air inlet, respectively; and   (c) a control valve located in the middle of the first transfer tube of the housing to control the flow of the pharmaceutical powder.   
     
     
         2 . The dispenser device of  claim 1 , wherein the control valve is a ball valve or a butterfly valve having a flow path formed in the valve. 
     
     
         3 . The dispenser device of  claim 1 , wherein when the control valve is open, an inner diameter of a flow path in the control valve i) is constant, ii) narrows in the direction in which the pharmaceutical powder passes and then widens again, or iii) becomes narrower in the direction in which the pharmaceutical powder passes and then remains constant. 
     
     
         4 . The dispenser device of  claim 2 , wherein in order to open and close the valve, a fine protrusion is formed on a valve accommodating part where the valve is rotated in the housing. 
     
     
         5 . The dispenser device of  claim 1 , further comprising a tube cap coupled to the conduit mounting part and having a lumen diameter at a distal portion greater than a lumen diameter at a proximal portion, based on the housing. 
     
     
         6 . The dispenser device of  claim 1 , wherein a bottom cap is coupled to a portion where the first transfer tube and the second transfer tube communicate with each other. 
     
     
         7 . The dispenser device of  claim 1 , wherein an inner diameter of the first transfer tube widens toward the second transfer tube. 
     
     
         8 . The dispenser device of  claim 1 , further comprising an air supply device coupled to the air inlet of the housing. 
     
     
         9 . The dispenser device of  claim 1 , wherein the first transfer tube comprises a first transfer tube upper channel configured to transfer air flow upward, and a first transfer tube lower channel configured to transfer air flow downward. 
     
     
         10 . The dispenser device of  claim 1 , wherein the second transfer tube comprises a second transfer tube inlet channel configured to introduce air into the housing, and a second transfer tube discharge channel configured to discharge air to the outside of the housing. 
     
     
         11 . The dispenser device of  claim 1 , wherein:
 the first transfer tube comprise the first transfer tube upper channel configured to transfer air flow upward, and the first transfer tube lower channel configured to transfer air flow downward;   the second transfer tube comprises the second transfer tube inlet channel configured to introduce air into the housing, and the second transfer tube discharge channel configured to discharge air to the outside of the housing; and   the second transfer tube inlet channel communicates with the first transfer tube upper channel, and the second transfer tube discharge channel communicates with the first transfer tube lower channel.   
     
     
         12 . The dispenser device of  claim 1 , wherein the control valve comprises a control valve upper channel configured to transfer air flow upward, and a control valve lower channel configured to transfer air flow downward. 
     
     
         13 . The dispenser device of  claim 1 , wherein the control valve comprises an air closure prevention notch recessed along a surface periphery of the control valve in a rotation direction of the control valve to maintain a circulation path of air when the control valve is switched from an open state to a closed state. 
     
     
         14 . A method of using the dispenser device for spraying pharmaceutical powder, the method comprising:
 (i) coupling the air supply device to the air inlet of the dispenser device for spraying pharmaceutical powder of  claim 1 ;   (ii) coupling the tube cap and a conduit to the conduit mounting part;   (iii) coupling a container containing pharmaceutical powder to the drug container adapter;   (iv) turning on the powder of the air supply device; and   (v) controlling the opening/closing state of the control valve and spraying the pharmaceutical powder.   
     
     
         15 . The method of  claim 14 , wherein the order of operations (i) to (iii) is changeable. 
     
     
         16 . The method of  claim 14 , wherein the tube cap has a lumen diameter at a distal portion greater than a lumen diameter at a proximal portion, based on the housing.